The vent pressure switch will have a rubber type hose off it to the combustion fan housing. pull the hose off and poke the conector with a paper cilp or wire to make sure it is not plugged at the housing. make sure the vent fan is running and jumper the switch if it comes on replace the switch if not look else where for your problem.a volt meter is a great tool . voltage across a switch means it is open and no voltage means its colsed. i should say to also check your venting as it maybe blocked. there is no reset
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The vent pressure switch will have a rubber type hose off it to the combustion fan housing. pull the hose off and poke the conector with a paper cilp or wire to make sure it is not plugged at the housing. make sure the vent fan is running and jumper the switch if it comes on replace the switch if not look else where for your problem.a volt meter is a great tool . voltage across a switch means it is open and no voltage means its colsed. i should say to also check your venting as it maybe blocked. there is no reset