Carrier Weathermaker 9200
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Carrier Weathermaker 9200
Hi - My Carrier Weathermaker 9200 quit on me. The thermostat went dark (no power). Upon opening the case, the red LED was dark. I checked and confirmed the 110v AC power was OK and I checked and confirmed the 3 amp fuse on the circuit board was OK. I put a multi-meter on one the neutral leads on the board, the other on the L1 BKWR lead and closed the interlock switch – the meter indicated the power OK. I disconnected all thermostat wires from the block on the board, turned the power on, closed the interlock switch and jumped the TEST/WIN to the Com24V with no results. The board did not go through the test. No blinking LED, no sounds, no nothing. Any ideas on what to try next? – Thanks.