Question about Heating & Cooling
The blower turns on but very little heat comes out
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: weathermaker 8000 58zav115
The technician sould have replaced the circuit board with part number CESO11057-02 which contains a diagnostic LED that will blink out a code when a fault is senced. If not we have to diagnose the hard and costly way, test each circuit.
There are only a limited number of reasons why the blower would stop running, one being a bad blower relay and another being a overheating of the motor inself causing it to shut off on internal overheat. The relay is part of your circuit board and the overheat is inside the motor, both of which you had replaced. Has anyone checked for a restricted air filter or supply/return restriction? Loose wire?
I'm guessing now. Good Luck and let us know what you find.
Posted on Jan 23, 2008
You could possibly have an ignition problem. The controller will go into a lock-out condition if flame is not established. Turning the temperature control down and then back up may be serving to reset the control system so it tries again.
Posted on May 22, 2008
I have the same problem, heating unit will not ignite, it trips out, i go into the roof cavity and remove the top of the unit (4 screws) and there is a motherboard, it has a Green light flashing what tells you the type of fault it has, mine has 3 Flashes telling me it a combustion air pressure system failure, ithen push the reset switch and it starts to initiate, a red light comes on and then it ignites and it will work for about 30 minutes to an hour and a half.
Hope this helps
Posted on Sep 20, 2008
SOURCE: Carrier 58MVP; Blower on, no
A code 12 is "Blower on after power-up" Try resetting the furnace with either the Emergency switch or circuit breaker. If it continues, you may need a new control board.
Posted on Nov 28, 2008
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