Lochinvar CH 100 CE, Installation, Commissioning, User & Maintenance Instructions

Page: 52 / 66

52
In
stru
ctio
n man
ual CH
11.4 CH Troubleshooting table - 'insufficient hot water'
Warning
Maintenance may only be performed by a qualified service and maintenance engineer.
Insufficient hot water
Feature Cause Measure Comment
Insufficient hot water Water temperature
setting (T
set
) is too low
1. Set the control thermostat (7.5 "Control thermostat") to a higher
value
Hot water supply is
used up
1. Reduce hot water consumption and give the water heater time
to heat up.
2. If this error persists, check whether the high-limit thermostat is
switching.
If this is the case, check that the circulation and/or top to bottom
circulation pump are working.
If the error has not been rectified, and no other cause can be found,
isolate the appliance from the mains (10.3 "Isolating the appliance
from the mains") , shut off the manual gas valve and alert your
installation engineer.