Dru Paco Instructions D'installation Et Mode D'emploi page 40

TROUBLESHOOTING GUIDE
OBSERVED PROBLEM:
H. Positive pilot flame, but valve shuts
off after approximately
10 seconds or when appliance gets
hot.
I. Short tones but sparking does not
start, and there is no noise from pow-
ering dc solenoid:
J. Pilot flame lights but there is no main
gas flow:
POSSIBLE CAUSE:
1.Receiver not programmed.
2. Not enough voltage generated from the
thermocouple within 20 seconds.Too much
resistance in the circuit.
fig. 6
1. Batteries are low.
1. Manual override knob is in MAN postion.
2.Valve turned down to pilot flow.
3. Low inlet pressure.
4. Damaged valve.
36
REMEDY:
1. Remove battery from receiver.
Reinsert battery into receiver.
2. Use a digital multimeter set in the mV
range and measure the voltage by connect-
ing the test leads to the spade connector.
Spade connector is located on the outer
surface, directly beside the magnet nut (see
figure 6).
The available voltage must be at least 5mV
within first 20 seconds. It must not be
lower if the appliance is heated. A simple
check is to measure the drop time after
the appliance is heated.The Manufacturer
must specify the drop time for the applica-
tion.*
NOTE: Long tones during ignition indicate that
there are approximately 10 more ignitions prior to
changing of batteries.
1. Replace batteries.
* To find out which part of the circuit is causing the
problem, a checklist for each application can be
prepared using an excel calculation form available
from Mertik Maxitrol.
1.Turn Manual override knob to ON position
(see figure 4).
2.Turn flame to high fire by pressing up but-
ton on remote handset.
3. Confirm regulator pressure, and sizing.
Replace valve if necesary.
4. Replace valve.