Q: 2003 honda odyssey cooling fans don't turn on with AC, ac works while driving and shuts off when sitting still

asked by on

I have a 2003 honda odyssey, and when i bought it i replaced the condenser and put on a used compressor. filled it up with the proper amount of freon and lube, everything works GREAT. now its warm out again i turn it on and it works fine, while im driving. and then shuts off when sitting still( after a few moments) i inspected the fans and they work fine( when i say they work fine i mean they spin freely, and when 12v is applied work normally) the Compressor shuts off after a few minutes of sitting still, and wont engage until after 3-4 minutes of driving. i got out and checked and both fans do not come on at all when the AC is on. the cooling fan rarely kicks on, but it does(never seen it on low before with ac off) the other day, after it was sitting shut the compressor down, (i assume overheated) and about 5-8 minutes later kicked back on and Voila! the Fans come on with it, switching from high and low and functioning normally. (one time this happened) And they wont come back on!
My car has an automatic transmission.

If the fans are not working properly and consistently to cool and condense the refrigerant in the condenser, pressure in the system could rise high enough to trip the high pressure cut off switch, thus accounting for the compressor shut down. There is a control circuit for the fans and that circuit will simply have to be traced for BOTH voltage drops and continuity and, as well, proper function of the relays and any temperature sensors that might be in the circuit. The factory wiring diagram is essential. To obtain this diagnostic, and get the required repairs implemented, please request an a/c condenser control circuit inspection and diagnostic and the responding certified mechanic will get this resolved for you promptly. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. 2003 honda odyssey cooling fans don't turn on with AC, ac works while driving and shuts off when sitting still

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: My car will not turnover at all! no spark not even does it try to start up i have replaced the distributer starter spark plugs

If the starter motor is not functioning (that is, if the starter is not engaging the flywheel and turning the engine over), either there is no power to the starter or there is power but the starter itself has failed...

Q: Car won't start after being parked

When the key is turned and nothing happens could mean several things; you have a bad battery (most common), the switch is bad, or the starter is not working. If you hear a click when you turn the key and...

Q: Q: AC only blows hot air

Hello. We will be happy to assist! To diagnose an AC concern, I first suggest checking the refrigerant levels as it is the most vital component to the health of the AC system. Then, a technician should attempt directly switching...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.