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Southwest Oklahoma | Thtemperature control ere are doors called face and bypass dampers operated by the temperature control. Sometimes the doors don't seal or operate as directed allowing air to go through the evaporater core instead of the heater core. Not the easiest thing to trouble shoot but if you have hot water in and out must be in the air side. If the flow is adequate the problem is likely air going the wrong way. | |
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heater problem
