Specifications

TM040 16, 18 & 20L Continuous Flow Gas Water Heater Service Instructions
D.O.I: 2/06/2009
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
38
Error Code 15
Error Code 15
Measure the hot water outlet
temperature
Does the measured hot water
temperature match that
indicated by 5y?
Is the resistance of the hot
outlet thermistor normal?
TEST 14
NO
Check the burner pressure and
adjust if necessary.
Refer to section on burner
pressure adjustment
Replace hot outlet thermistorNO
Replace PCBYES
YES
Display maintenance information
„5y‟ on remote control
Is the resistance of the heat
exchanger thermistor normal?
TEST 14
Replace heat exchanger
thermistor
YES
NO
Check wiring. Ensure all
connections are securely
fastened.
Error Code 16
Error Code 16*
The gas booster should not
operate with an inlet temperature
in excess of 58
o
C
*Error 16 will occur if the unit heats the
water to 20
o
C above the set point – 3
o
C
eg: 60 + 20 – 3 = 77
o
C.
**Is the unit used as an
in-series gas booster?
** 246, 276, 876 series heaters are
unsuitable for use as in-series gas boosters.
Is the inlet water
temperature >58
o
C?
Replace PCB
Is the resistance of the
proportional gas valve
correct?
TEST 12
Replace the proportional gas flow
regulating valve
YES YES
NO
NO
YES
NO
Is the resistance of the cold
water inlet thermistor normal?
TEST 14
YES
Replace cold water inlet
thermistor
NO