Rev. B 8/14 MASTERTEMP
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125 Pool and Spa Heater Installation and User’s Guide
35
SAFETY CONTROLS (continued)
OPERATION OF IGNITION MODULE
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WARNING
Risk of explosion or fire causing burns or death if safety interlocks are disabled. DO NOT attempt to operate heater when
SERVICE HEATER light is on or if blower or burner will not start. Instead, follow instructions under “To Switch Off Gas to the
Appliance,” and call a qualified service technician to repair unit.
Flame Current
Check Point
Section 4. Operation Instructions
Figure 31.
Temperature
Up and Down
Digital Temperature
Display
System Operation
Indicator Lights
Dual Temperature
Controls
Heater "OFF"
Switch
Figure 32.
Diagnostic LED
1 Flash - Air Flow Fault
2 Flashes - Flame No Call for Heat
3 Flashes - Ignition Lockout