Heater Shutdown; Operator Maintenance Instructions.6-7; Troubleshooting - Mr. Heater MH40 NG Installation And Operating Instructions Manual

FIGURE 6. GAS VALVE COMPONENTS
Wait 5 minutes to allow gas that may have accumulated in the mam burner to escape (especially
important after installation).
Turn the manual gas control knob to the PILOT position.
Depress the manual gas control knob. Using a match, light the pilot light. See Figure 6. Hold the knob
down for approximately 30 seconds to allow any air in gas lines to pass through pilot and, once the pilot
is lit, allow the thermocouple to heat up enough to activate the safety valve in an open position.
Release manual gas control knob and turn to ON. Reset thermostat to desired temperature.
NOTE
During the initial startup of MR. HEATER an odor and, perhaps, some vapor will come from the
heater. This is the gasket binding material emitting this odor and/or vapor. After approximately 20
minutes this odor will disappear and not occur again.
12. MR. HEATER SHUTDOWN
Turn thermostat to OFF.
Turn manual gas control knob on gas valve to PILOT position.
Partially depress knob and rotate to the OFF position.
Close gas supply valves.
13. OPERATOR MAINTENANCE INSTRUCTIONS
1. TROUBLESHOOTING
a. Table 4 lists the common malfunctions which you may fir d during the operation or mainte
nance of your heater.
b. For additional information refer to Honeywell Field Bullet n enclosed in the heater carton.
c. In the event results cannot be obtained after performing all listed solutions, call your Mr.
Heater dealer, or the factory customer service department at 1 -800-251 -0001.
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