TMG TMG-HW28, Руководство по эксплуатации продукта

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BOILER SYSTEM DIAGNOSTICS - Vacuum Switch - Optional
PROBLEM POSSIBLE CAUSE SOLUTION
Switch activated manually
Improper diaphragm movement Replace switch if improper diaphragm movement is detected.
Low water flow Correct problems related to inadequate water flow.
Air leak in or punctured
diaphragm
Replace vacuum switch if diaphragm shows an air leak or
hole.
Switch shows continuity
when activated
Problem elsewhere insystem If vacuum switch works properly, continue with other boiler
control diagnostics.
Switch does not shows
continuity when activated
Switch contact bad Replace switch with another one.
BOILER SYSTEM DIAGNOSTICS - Thermostat
PROBLEM POSSIBLE CAUSE SOLUTION
Thermostat set improperly Thermostat set too low Set thermostat properly and ensure connections are not
loose or corroded.
Boiler fires when thermostat
jumped, but will not fire with
thermostat in circuit
Thermostat bad Replace Thermostat.
Boiler will not fire when
thermostat jumped
Problem elsewhere insystem
Continue with boiler control diagnostics. If boiler still does not
fire, the thermostat may need
replaced.
BOILER SYSTEM DIAGNOSTICS - High Temperature Limit
PROBLEM POSSIBLE CAUSE SOLUTION
Electrical continuity through
switch
Connections loose or corroded
Check connections to high temperature limit switch to ensure
that they are not loose or
corroded.
Problem elsewhere in system
If there is continuity through the switch but the boiler still
does not fire, there is a problem
elsewhere in the system. Continue with boiler control
diagnostics.
No continuity through switch Switch bad Replace switch.
BOILER SYSTEM DIAGNOSTICS - Low Fuel Shut-Off
PROBLEM POSSIBLE CAUSE SOLUTION
Fuel level low Switch may be operating properly Add fuel and retest.
Fuel level proper
Level sensor stuck Check level sensor for proper movement. Clear, repair, or
replace sensor assembly.
Reed switch bad Check level sensor for proper action. Replace switch if
needed.
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