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Heat not working

3K views 29 replies 5 participants last post by  beenthere 
#1 ·
Hello all:

Iam having a problem with a Magic-Pack unit. I had a service technician out and he coudn't fix it. I'll try to describe the problem as best I can.

Heat was working with no problem. Now it very rarely comes on, but occasionally does work for a short period of time and then it shuts down. I have turned on/off the emergency reset switch, changed the batteries in the thermostat, turned off the thermostat,raised the thermostat to a high set point.

In all cases either nothing happens, or the blower runs for a short period, the gas burner might fire, but then it shuts down. There is clicking out at the unit as it seems to be trying to start up. I just tried setting the fan to run constantly and nothing happened. The unit was installed in March of 2009. 48000 BTU, Honeywell electronic thermostat.

I'm thinking of replacing the thermostat, least costly option, since it cost me $110 for a technician to change the batteries in the thermostat. They were my batteries. Any help would be appreciated.

Thanks,
 
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#29 ·
You know what's harder than trying to troubleshoot a heater problem? Trying to buy a honeywell pressure switch for a magic-pak unit.

Can I override the pressure switch by jumping the 2 wires temporarily to see if that is in fact shutting down the unit?

Thanks.

Greg
 
#30 ·
Since its been working on and off. Jumping the pressure switch won't tell you anything. Unless it happens not to run that time.

But you can try it.
 
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