37
BURNER CYCLES ERRATICALLY
NOTE: When the thermostat wires terminate on the HSG primary control box “T” terminals, the heat
anticipator setting value for the HSG burner is determined by adding the primary control current to the gas
valve current. The result is the anticipator setting. (Example: 0.2 + 0.6 = 0.8 amps).
If the thermostat wires ARE NOT terminated on the burner control box “T” terminals and these terminals
are JUMPERED, you must then determine what the correct anticipator setting is by inspecting the
controlling device at the point where thermostat wires terminate. Typically, this information can be found on
the body or cover of the controlling device.
When determining the current draw of the dual head gas valve, be sure to consider the separate ampere
values for each valve. These usually are stenciled on the valve body, and must be added together to
obtain the correct sum. (Example: 0.4 + 0.2 = 0.6 amps). When the current draw cannot be determined
accurately by the above method, measure the current with an ampere meter using 1 AMP scale. Connect
the meter leads in series with one of the thermostat leads for the accurate reading.
Check for proper thermostat installation and location.
If thermostat is used, remove wires at T-T terminals
and replace with jumper wire. If burner runs properly,
check thermostat for proper operation.
Check thermostat heat anticipator for correct setting.
Check low voltage circuit for bad wiring, electrical
connections and/or switches.
Check line voltage circuit for bad wiring, electrical
connections and/or switches.
1. Check line voltage circuit for bad wiring, electrical
connections and/or switches.
Set the anticipator to the correct value
if adjustable type. If proper setting
cannot be made, replace with
compatible thermostat.
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