Mr. heater model mhu45 combustion air blower will not start. len on circ uit board blinkiing s times. cleaned flu ahd vent exshaut
Checked pressure switch and is closed prior to trying to start, still get pressure open led signsl and no cab startup.
Heating & Cooling - Mr. Heater - MHU45NG
Answers & Comments
On your heater, does it tell you a fault code for the number of blinks?
If you have cycled the power to the unit already, the fault code should have cleared. If the fault code cleared and then came back, sounds like either a issue the blower motor being shot, or a relay in between the ignition controller and or the ignition control is bad, not making the heater do anything.
I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_54ae41aaaffbab00
Add a Commenti
i will let you know.