Slant/Fin VGH-299-CH Installation And Service Manual page 89

Lock Error
out
code
33 LWCO_1_
ERROR
34 LWCO_2_
ERROR
35 APS_NOT_CLO
SED_IN_POST_
PURGE
36 GAS_PRESSUR
E_ERROR
Table 14. 1
Description
Low water cut off 1 error
Low water cut off 2 error
Air pressure switch not
closing during post-purge
1
Gas pressure switch open
for more than
E2_GPS_Timeout
E93.1601EN032.C VGH installation manual
Cause Solving
There is no water in Check if there is enough
the heat exchanger water in the heat exchanger
or not electrically if not so fill up the system
connected
There is no water in Check if there is enough
the heat exchanger water in the heat exchanger
or not electrically if not so fill up the system
connected
no air transport to Check if there are any
the burner after obstructions in the flue or air
heat demand; flue intake, replace APS if
or air inlet is jammed, connect air hose to
blocked or APS is the air intake pipe, remove
jammed or air any water from the hose.
signal hose not
connected to the air
intake pipe or water
in hose
wrong gas pressure Check if gas pressure is in
on gas supply limits of the gas pressure
switch.
89