Dovre SAPPHIRE DV425TR Owner's Manual And Installation Instructions page 56

Problem:
Thermostat/
Wall Switch
will not cycle
the Main
Burner (Cont.)
Main Burner lights
Main Operator Coil is
while in the
Pilot position.
02/01
TROUBLE SHOOTING (continued)
Possible Cause:
Excessive Wire
Resistance.
Valve Wired
Incorrectly.
the TPTH and TP
Verify electrical resistance of the Main Operator the following
defective.
Debris on Seat of
Main Valve.
Main Seat blown out
as a result of exposing
an LPG Gas Valve to
an unregulated line
pressure in excess
DV425TR DIRECT VENT ROOM HEATER
Solutions:
Make sure that all mV connections are made using wire of
the proper size.
The Thermo-generator leads must be connected to the
TPTH and TP connections of the Main Operator.
Thermostat Wires must be connected to
Terminals of the Valve.
manner:
(A) Remove ALL WIRES! from the Operator Head.
(B) With an Ohm meter, measure electric resistance between
the TP and TH Terminals. If the resistance does not fall
within specification, replace the Valve.
Replace Valve.
Replace Valve.
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