Installation Instructions

Owner's Guide
Page
48
Troubleshooting
TROUBLESHOOTING
-General-
PROBLEM SOLUTIONS
TEMPERATURE and AMOUNT OF HOT WATER
The water is not hot enough.
• Compare the ow and temperature. See the chart on p. 58.
• Is the plumbing correct(primary/secondary, pump size, ect.)?
• Is the gas supply valve fully open? (p. 33)
• Is the gas line sized properly? (p. 24)
• Is the gas supply pressure sufcient? (p. 20 and p. 25)
• Is the set temperature set too low? (p. 43 to p. 45)
The water is too hot. • Is the set temperature set too high? (p. 43 to p. 45)
The hot water is not available
when there is a call for heat.
• Make sure the unit has 120VAC, 60Hz power supply.
• Is the temperature controller power button turned on?
• Is the gas supply valve fully open? (p. 33)
• Is the Y-strainer clean?
• Can the emitters sufciently draw at least 0.5GPM (1.9 L/min)
through the micro-boiler. (p. 43)
• Is the unit frozen? (p. 46)
• Is there enough gas in the tank/cylinder? (For Propane)
• Is it plumbed backwards with reverse plumbing?
The hot water turns cold and
stays cold.
• Is the ow rate enough to keep the unit running? (p. 43)
• Is the gas supply valve fully open? (p. 33)
• Is the Y-strainer clean?
• Is the system clean of debris and obstructions?
Fluctuation in hot water
temperature.
• Is the gas line sized properly? (p. 24)
• Is the supply gas pressure sufcient? (p. 20 and p. 25)
• Is the plumbing correct?
WATER HEATER
Unit does not ignite when
water goes through the unit.
• Is the power on the micro-boiler?
• Is the gas on?
• Is the ow rate over 0.5GPM (1.9 L/min)? (p. 43)
• Is the system Y-strainer clean?
• Check for reverse connection and cross connection. (p. 30)
• Is the temperature controller power button on?(p. 43 & p. 44)
• Check if the system return temperature is to high?
The fan motor is still spinning
after operation has stopped.
• This is normal. After operation has stopped, the fan motor keeps
running from 15 to 70 seconds in order to re-ignite quickly, as well
as purge all the exhaust gas out of the ue.
Abnormal sounds from the
micro-boiler.
• Is the correct gas type of micro-boiler installed? (LP or NG)
• Are the DIPswitch settings for your altitude set correctly?(p. 29)
• Check the ame quality. (p. 47)
• Is the intake or exhaust vent blocked? (p. 10)
• Is the vent length and diameter correct? (p. 11 to p. 16)
• Is the manifold pressure set correctly? (p. 4)
Unit sounds abnormal while in
operation
• Contact the manufacturer at 1-763-331-3066
REMOTE
CONTROLLER
Controller does not display
anything when the power
button is turned on.
• Make sure the micro-boiler is supplied with power.
• Make sure the connection to the micro-boiler is correct.
• Note: When the micro-boiler has not operated for ve minutes or
more, the display of the controller turns off to conserve energy.
An ERROR code is displayed. • Please see "-ERROR CODES-" on page 49.