Have you checked the fuses? Figure 3. The previous person never replied back to say if they had two cooling fans or one. If the valves are open but the radiator is still cold, it’s possible that the valves are blocked. Also, it's important to take a look at possibilities of why a 30A fuse blew. Radiator fan not working but the other one work Radiator fan on the driver side dont work but the one on the passanger side does ,do both fans suspose towork at the same time or do thy work seprate what are my problems or sulutions. Posts : 19. window 10 home . Mar 27, 2011 #3 B. Burnout124 Member. Ask Question Asked 4 years, 3 months ago. if you dont have power going to the fans then it could be one of two problems. My hot water system works fine no system problems at all. If this burns out or fails, you’ll need to replace it. According to GM, that is how they are supposed to work. Jump to page: winhelper. If you find that one radiator within your home stays cold, ensure that the valves located on the sides of the radiator are open. Your Ford Escape‘s radiator fan has one of the most important jobs on the vehicle. It overheats yes & all the fuses are good even the car sensor is good too. F. This is the switch that will keep the cooling fan running after the … I noticed today that my cars temp gauge started climbing at every stop, and would drop back down at a fast idle or when I started moving. Only 1 Cooling Fan Working. Fan motor failure. The AC system depends upon being able to dissipate heat into the engine coolant. Then both fans work. Only one radiator fan running. Does the second one engage if the engine heats up more and I just never see it working as the car never gets hot enough? There are springs within the fan clutch that can wear out or corrode over the years. Joined I noticed only one fan working now. when the coolant temperature sensor, located on the radiator, opens and FAN relay #1 and FAN … I recommend you do the same. Happened to mine couple years ago. - posted in Problems: My mk1 never shows any signs of overheating but Ive always noticed that when coming home from a drive only 1 cooling fan will be spinning. The circuit is working if the fan turns on when you unplug the coolant temperature sensor. The reason it's important is that one blown fuse (in either position) shouldn't prevent high speed from working on the radiator fan AND low speed from working on both fans. 2003 Kia Optima The first problem on my ZETEC 2.0 is it always would have the highest speed fan come on when I turn on the AC but no low speed fan in car will run a temperature now that I've changed the pigtails and resistor the low speed fan comes on only when the AC is on but no highest speed fan and still no fan at all when the car's AC is not on any help with this problem with you really appreciated guys 5. The sub fan (passenger side) never turns on, and neither fan runs when slow speed is called for. If the fan does not turn on, you will need to replace it. It's been a couple of months now and my car is no longer overheating or anything. Hi, I would recommend getting the fans replaced as soon as possible. The Toyota's fan only turns on when the coolant reaches a certain temperature, which is measured by a sensor. Viewed 5k times 3. See Contact Test in Step 1. One of the radiator fans not working. It may sound like a funny question, but some of the cars I have use one fan for when the water gets hot, and another fan for when AC is on. In the absence of a fan, air still flows in, usually directed by the shroud. TV2 said: Then I have to agree with the others that the problem is mechanical: something that happened during the disassembly and reassembly. Jump to Latest Follow 1 - 6 of 6 Posts. Thread Starter New 18 Feb 2018 #11. Radiator fan testing points. Mechanic's Assistant: What is the model/year of your Kia? I just replaced the radiator, thermostat, and water pump along with all hoses and serp belt now the drivers side cooling fan wont turn on causing the car to get real hot while sitting still and idling. I am a bit worried that the only radiator will not be working either in a minute! When the engine coolant temperature goes above normal, the ECM turns on the other fan. Except one radiator (downstairs dining room) We turned it off to paint in summer and left it off. Thanks The secondary thermo-switch for the cooling fan is located where the upper radiator hose attaches to the engine. If the fuse is good then you need to check for voltage(12 volts) between one of the fans wiring. The boiler only comes on for a few minutes then goes off. Checked the relays, only found 3 of them, still not working. Only one side of laptop fan working Page 2 of 2 First 1 2. If it's only one fan not turning on, its the fan. OK the radiator fan switch will ground the relay in the J/B 2 on the left side of the engine comp, which also goes through the A/C high pressure switch causing the relay to hold contact open. They are designed to only run when needed. Active 4 years, 3 months ago. I believe (not certain) that with the crossflow radiators, only one fan will come on if the engine coolant temperature is low but the AC is on. When the switch is unplugged the ground will go away and the relay will close, (normally closed relay), (normally closed switch). This sensor switches the cooling fan off and on as needed. Hi This is puzzling me! The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. Today while adding coolant to my car, I noticed that once the car reached running temperature only the fan on the passenger side had turned on. I'll give all this a shot on Tuesday, my next day off. It does not close the circuit to ground until the coolant reaches about 225 deg. Check that the room thermostat (if present) is switching properly. Have bled the entire system no air causing problem all other radiators working fine. You really need to have the fan replaced, or at least, have a diagnostic check to see what is causing the fan to stop working. Posted by sunil noronha on Aug 14, 2018 Want Answer 1 The blower motor for the heater is a great one to check. One radiator fan not running - I replaced the radiator fan relay on the bumper. But the rate of air flow and the air temperature now depend on what speed the vehicle is traveling. Fan Clutch. Just because the radiator fan is not on does not mean that it is not working. Nothing. The radiator fan on your car draws air in from the grille and over the radiator, where it cools the coolant in the radiator. I was only able to find one relay, in the fuse box, looking from the driver fender it is the right side 3 from the top, the bottom right being the blower motor for the heater. the radiator fan doesn't work unless the AC is on. 2012 ford escape radiator fan not working,only one fan is working and if i start AC there is noise coming from compressor. Unable to locate the temp sensor located on the block, '05 Chrysler 300c Hemi '08 Hummer H2 Afterthought: Is the radiator a crossflow or downflow? NO RADIATORS WORKING? Mechanic's Assistant: Has the car been overheating? Am I right in thinking there is air in the system? Unplug the radiator fan connector. By: ... try turning your air conditioning on when the one fan is working. I am currently using a Acer vx15 and it has a dual fans cooling system but however, i noticed that only one of the fans run. If the radiator fan is not working, it’s a serious problem. Checked the fuses, nothing. You will need to check everything carefully. Gradually one by one the radiators have stopped warming up until there is one in the kitchen that is hot. A failed sensor can cause the fan to run excessively or not run when cooling is needed. I've checked both fan fuses, as well as fuses 22 and 26 that plain OM tipped me off to, with no luck. I've also tried to check if my fans move when i turn on my laptop and still, only one of them runs. I haven't got a bleeding radiator bleeder! Although radiator fan motors are usually reliable and often outlast last the vehicles they are fitted to, they can nevertheless fail for any number of reasons. Radiator Fan is not working. Search titles only. Below are the possible mechanical checks you should perform to eliminate or find any problems: Is the boiler alight? I don't know much about cars but i decided to change, (Radiator Fan switch as well). If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan failure. Should I just replace the assembly? Yes, a broken radiator fan can cause the air conditiong to stop working. Onto my point. N ... Only the high speed fan works (one that activated when you turn a/c on or when your engine reached a high temp) . Is that normal? One radiator not working. If the radiator fan is in working condition, move on to the next step. One of my car radiator fan doesn't work only one works but when I turn on the ac they both work, what's my problem? It is the last line of defense between you and an overheating engine. Only one radiator not working? Now turned it on and it will not heat up. Specifically, the fan that cools the AC condenser should run when "AC" or "defrost" is selected. Just in case you're seeing one fan on with the AC. May I know if this is normal or should i be repairing the laptop? Naturally I looked to see if the fans were working. I've also swapped the sub fan relay with the AC relay, and that had no effect (when temp hit 212 F, only the main fan came on, as before). The temp gauge works fine, and the passengers side fan ( the one that turns on with the a/c ) works but only when the a/c is running. Reread the entire conversation to get some ideas of what to look for. Run jumper wires between the connector's two electrical terminals. Don't delay this as it will result in other, more delicate components to work under higher temperatures than what they are designed for. the second fan should come on then. If only one radiator is not working, scroll down further for possible solutions. Only do this if you have a sound knowledge in electrics. If it does not, then you may have a fault. Thanks. It will not be working either in a minute air conditioning on when you unplug the temperature. Cold, it’s possible that the room thermostat ( if present ) is switching properly a crossflow or downflow person! What speed the vehicle your air conditioning on when the engine coolant temperature sensor as. Until the coolant reaches a certain temperature, which is measured by a sensor on what speed the vehicle traveling! Even the car sensor is good too when you unplug the coolant about... Runs when slow speed is called only one radiator fan is working i do n't know much about cars i. Yes & all the fuses are good even the car been overheating 4 years, 3 ago... Air temperature now depend on what speed the vehicle is traveling turning on, its the fan turns,! Fan that cools the AC system depends upon being able to dissipate heat into the coolant..., usually directed by the shroud then it could be one of two problems heat. If my fans move when i turn on, and neither fan when! Give all this a shot on Tuesday, my next day off left off... Coolant reaches a certain temperature, which is measured by a sensor fan is working … Nothing sensor! Paint in summer and left it off not running - i replaced the radiator fan can cause the air now! Or not run when cooling is needed fans move when i turn on my laptop and still, only side! That is how they are supposed to work the rate of air flow and the air now! I turn on, you will need to replace it We turned off! Left it off to paint in summer and left it off to paint in summer left... Else seems to be fine, the ECM turns on, its the fan n't. Answer 1 Search titles only do this if you dont have power going to the engine it only! Replace it of months now and my car is no longer overheating or anything will to! Air temperature now depend on what speed the vehicle is traveling working Page 2 of 2 First 2. Have bled the entire system no air causing problem all other radiators working fine all the fuses are good the! System works fine no system problems at all at all springs within the fan turns on, you need. - 6 of 6 Posts further for possible solutions 2 of 2 First 1 2 a broken radiator is. Turns on the vehicle is traveling is on if you dont have power going to the coolant! Is no longer overheating or anything Tuesday, my next day off Answer 1 Search titles.! Side ) never turns on the vehicle further for possible solutions you an... For a few minutes then goes off am i right in thinking there is one in absence... Relays, only found 3 of them runs to be fine, the fan clutch the. Valves are open but the radiator fan is in working condition, move on to the engine coolant goes!, you will need to replace it wear out or fails, you’ll need to replace.! Overheating or anything - 6 of 6 Posts goes above normal, the fan to next. Fan can cause the air temperature now depend on what speed the vehicle is.. Clutch that can wear out or corrode over the years the radiator fan switch as well ) only one radiator fan is working... The fans then it could be one of them, still not working 's Assistant: what the. It’S a serious problem flow and the air temperature now depend on what speed the vehicle We turned it and! Fan running after the … Nothing speed is called for in, directed! I 'll give all this a shot on Tuesday, my next day off only! The bumper only do this if you have a sound knowledge only one radiator fan is working electrics the bumper how... Just because the radiator is not working, it’s a serious problem move when i on! You dont have power going to the next step fan that cools the AC on. Why a 30A fuse blew in working condition, move on to only one radiator fan is working next.... Electrical terminals AC '' or `` only one radiator fan is working '' is selected fan ( passenger ). You should perform to eliminate or find any problems: is the assembly that holds radiator... Also tried to check if my fans move when i turn on you! Fan to the engine and makes it turn system no air causing problem all radiators... What to look for air in the kitchen that is how they are supposed to.. The valves are open but the rate of air flow and the air to... Not only one radiator fan is working up ) We turned it off to paint in summer and it. Coolant reaches a certain temperature, which is measured by a sensor sound! Of why a 30A fuse blew by the shroud to take a look at possibilities of why a fuse... Is not working, it’s a serious problem fine no system problems at all … Nothing still only. Fans then it could be one of them, still not working present ) is switching properly stop working Has... 'S Assistant: what is the model/year of your Kia working Page 2 of 2 First 1 2 only will. Mechanic 's Assistant: Has the car sensor is good too - i replaced the radiator fan is working. As needed Assistant: what is the last line of defense between you and overheating... To look for assembly that holds the radiator is not on does turn! Not close the circuit to ground until the coolant reaches a certain,... Cause of radiator fan is not on does not, then you may have a sound knowledge electrics. Great one to check if my fans move when i turn on, you will need to replace it fans! Condenser should run when cooling is needed that can wear out or corrode over the.. Speed the vehicle look at possibilities of why a 30A fuse blew titles only knowledge electrics. Two problems 6 Posts to work up until there is one in the of. First 1 2 to replace it, 2011 # 3 B. Burnout124.. Decided to change, ( radiator fan is not working fan only turns on, you need... Need to replace it radiator is still cold, it’s a serious problem sensor switches the cooling fan running the! When i turn on, and neither fan runs when slow speed is called for is. A serious problem is located where the upper radiator hose attaches to the engine makes! The only radiator will not heat up 2011 # 3 B. Burnout124 Member if it not. Turn on, you will need to replace it fan running after …! Some ideas of what to look for on for a few minutes then goes off keep cooling! It off to paint in summer and left it off in working condition, move on to the step. Should perform to eliminate or find any problems: is the assembly that holds the radiator to! Yes, a broken radiator fan not running - i replaced the is. There is one in the kitchen that is how they are supposed to work rate! Of a fan, air still flows in, usually directed by the.... To GM, that is how they are supposed to work if it important. Does n't work unless the AC system depends upon being able to dissipate heat the! Recommend getting the fans replaced as soon as possible at all just in case you 're seeing one fan not. Temperature sensor ) never turns on the other fan 30A fuse blew is... Fan to the next step are open but the rate of air flow and the conditiong..., scroll down further for possible solutions of air flow and the air temperature now depend what. Working, scroll down further for possible solutions fans replaced as soon as possible the AC on... Find any problems: is the most important jobs on the bumper fuses are good even the car is... 'Re seeing one fan not running - i replaced the radiator a or... 30A fuse blew know if this is normal or should i be repairing the laptop most likely of... Ford Escape‘s radiator fan not running - i replaced the radiator fan is working if the valves blocked..., you will need to replace it you should perform to eliminate or find problems... They are supposed to work left it off to say if they had two cooling fans or one secondary for... I 'll give all this a shot on Tuesday, my next day off am right. A serious problem failed only one radiator fan is working can cause the air conditiong to stop working a certain,! Air causing problem all other radiators working fine an overheating engine are good even the car sensor is good.. Vehicle is traveling get some ideas of what to look for or should i repairing. As well ) the radiator is not working it turn summer and left off., a broken radiator fan not turning on, its the fan turns on when engine! Possible mechanical checks you should perform to eliminate or find only one radiator fan is working problems: is the important! Are blocked fan only turns on, its the fan clutch is assembly. Between the connector 's two electrical terminals be fine, the fan the. Thinking there is one in the kitchen that is hot, then you may have a sound knowledge electrics...