Question about Comfortmaker N8MSN0902120A 88,000 BTU 80% Gas Furnace, 1 Stage,

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Lost power after storm -unit will not reset - don't get the heart beat "led" --will not turn on -cool , heat or just the fan

Tried setting thermostat to all off modes and then turning off all power going to furnance using the fuze box -after 5 min wait repowered unit - led light stays on but faint ,no blinking . tried this twise same out come what sould i try next ?? - thx for the help

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There should be an automotive 3 amp fuse on the circuit board. It should be good, IF you are getting a heartbeat, but check it anyway. Considering it was a storm, I'd look at the grounds. Make sure it is making a good and solid connection to the ground lug. Grounds make freaky problems sometimes.

You mentioned 'fuse box' and not a breaker box. The furnaces of today with their circuit boards require a good ground all the way back to the ground lug in the box. Sometimes they will work fine without, then decide they are not gonna work at all. Sometimes, even a dry ground rod outside the house is the culprit.

Posted on Nov 22, 2014

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Lamp Replacement Procedure:
1. Press the POWER button to turn off the power.
2. Wait for about 1 minute until the cooling fan stops.
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3. After the cooling fan has stopped, unplug the AC Cord from
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Note:
Please wait more than one hour before replacing the lamp.
[ Forced cooling function ]
If you need to replace the lamp more urgently:
- The Projection display has a forced cooling feature.
After the POWER button is turned OFF, and during the
first minute of the normal cooling fan operation, press
the VOLUME UP button on the unit and CH UP key on
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The cooling fan operates for about 10 minutes. (LAMP
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