COMBAT
®
CTU UNIT HEATERS INSTALLATION OPERATION AND SER VICE MANUAL
36 of 46
16.1 General
If problems persist, contact
Combat
®
at T
el: +44(0)121
506 7709 www.rg-inc.com
Heater Operating
TROUBLESHOOT ENDS.
No
Check for mis-wiring.
Change time delay relay.
Check time delat relay. Is
there 230 V accross brown
and blue wires?
Ye s
No
No
Ye s
Check limt thermostat;
Reset.
No
No
Use 15.2 to test burner.
Ye s
Ye s
Use 15.2 to test burner.
Is Red lockout
warning light on?
Ye s
No
Turn on supplies.
Are gas & electrical
supplies on?
No
Ye s
START
With external controls on,
does the burner continue
to fire?
Is distribution air fan
operating?
Conduct Commissioning procedure as shown on Page 25, Section 12.
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