Troubleshooting Guide - Re-Verber-Ray MP-25-80N Insert Manual

4.0

Troubleshooting Guide

4.0 Troubleshooting Guide
Turn on control
device for heat.
Does the fan
No
blower turn on?
Yes
Does the
No
pressure switch
light turn on?
Yes
Does the igniter
No
warm up and
turn red?
Yes
Does the valve
No
light turn on?
Yes
Does the gas
No
valve open?
Yes
Continued on Page 24
Replace or
repair damaged
components.
Yes
Is the control
device or
No
thermostat wire
damaged?
Yes
Does the igniter
warm up and turn
red?
Does the igniter
appear to be
No
physically
damaged?
Yes
Replace igniter.
Does the gas valve open?
(Usually a distinct
'click' noise occurs).
Check inlet pressure to
the heater. Is it within the
minimum and maximum
allowable range as per the
rating plate?
No
Adjust inlet pressure.
22
Find source of
electrical problem
and repair.
No
Does the heater
have 120VAC at
the power entry
cord?
Pressure switch light is burned out.
Replace light.
Temporarily disconnect igniter
from harness and check the
resistance. Is it within the
range of 50-400 Ohms?
No
Replace igniter.
Gas valve light is burned
No
out. Replace light.
Are the wires
to and from
the gas valve
properly
Yes
connected?
Yes
Continued on Page 24
MP Series
Yes
No
Yes
No