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Posted on Jan 02, 2017
SOURCE: Rinnai RHFE 1004F Error code 49
A 49 error code is caused by the pressure switch either not proving or a bad component. Check the hose attached from the plastic elbow located behind the heater going to a small square pressure switch found inside the heater. It may have come loose or a mouse may have taken a bite out of it. Also while you are behind the heater, pull off the hose that looks like a vacuum cleaner hose and run the heater with it unattached. If it runs, you have a blockage in the vent. If not, take a flashlight and go outside to the vent. Look down the center pipe for any obstructions. If it still does not work, you may need a new pressure switch.
While the front panel is off the heater, cycle the heater to attempt a start. You want to make sure the blower turns. If it does not, check the wire connections to it. You may be looking at a bad blower. If it is turning but still does not start, we are looking at a bad pressure switch.
Let me know what you find, I may have a switch or blower motor that you can purchase.
Posted on Nov 01, 2007
No, this is not the same as the LE code. The FE code indicates an overflow error or condition. The things to check out would be the drain and the drain line to make sure there are no kinks in it. The drain hose can get clogged with sludge and sometimes a hot wash with a 1/2 cup of vinegar will clean out the sludge. If that doesn't work, I would take a look at the pump to make sure it is not clogged with anything and that the pump impellers are good. Take a flashlight and look into the suction port of the pump. Look for any broken or missing impeller blades. If any are broken or missing or if the impeller will not move freely, the pump would need to be replaced. Hope this helped and best wishes.
Posted on Jul 31, 2009
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