Troubleshooting; Basic Problems - Vesta VRC-80 User Manual

Troubleshooting

Basic Problems

If there is a problem with the boiler, refer to the following table for possible remedies. For minor problems, turning the boiler off and then
turning back on may resolve the situation. If turning the boiler of and on and attempting the remedies suggested below do not resolve the
problem, contact an authorized technician, licensed professional, or technical support at 1-800-761-0053.
Category Problem
Boiler does not ignite.
Initial
operation
Unit attempts to ignite but
fails
Space heating side
malfunction
Hot water is not produced
when a faucet is opened.
No water is available when a
faucet is opened.
The hot water is not at the
correct temperature.
Temperature
Water takes a long time to
become hot after opening
the hot water faucet.
The water is too hot.
The water is not hot enough.
Fluctuation in hot water
temperature.
Possible Cause(s)
• Are the gas and water pipes connected
properly?
• Is there air in the gas line?
• Is the gas supply pressure sufficient?
• Is the setting temperature too low?
• Is there power to the system, or is the system
in stand by?
• Are the gas and water supply valves fully
open?
• Is the water supply cut of to the household?
• Is gas being provided by the gas meter?
• Is there enough gas (for LP) in the tank?
• Is the water inlet filter clogged?
• Is the power button turned on?
• Is the water supply cut off?
• Is the boiler frozen?
• Are the pipes frozen?
• Is the hot water faucet sufficiently open?
• Have you allowed enough time for the cold
water in the pipes to drain out?
• Are the gas and cold water supply valves fully
open?
• Is the water temperature setting appropriate?
• Are the gas and cold water supply valves fully
open?
• Is the water temperature setting correct?
• Is the water inlet filter clogged?
What to Do
• Check for correct plumbing or crossed piping to
the unit.
• Turn off the boiler and then turn it back on.
• Have your installing contractor check the gas
supply pressure.
• Ensure the boiler is powered by 120 V-1 PH-60 Hz.
• Check the boiler's temperature setting. See
"Operating the Boiler" on page 6.
• Make sure the power is on, and plugged into the
outlet with the correct voltage. Press the Power
botton and raise the setting temperature. Make
sure the boiler is turned on.
• Fully open the gas and water supply valves.
• Check the water inlet flter for debris.
• Check the power status of the boiler.
• Open the cold water supply.
• Check if the boiler and/or the pipes are frozen.
• Fully open the hot water faucet.
• Even though the unit may be operating properly,
the cold water contained in the piping will need to
fow through the faucet before the hot water can
reach the faucet. Wait for several minutes.
• If the cold water supply temperature is too high, it
is possible for the temperature to be higher than
the temperature set on the front panel. Decrease
the water temperature on the front panel.
• If only a small amount of hot water is required, it is
possible for the temperature to be higher than the
temperature set on the front panel. Decrease the
water temperature on the front panel.
• If the cold water supply passes through a solar
preheating system, it passes for the delivered water
temperature to be higher than the temperature set
on the front panel.
• Fully open the gas and cold water supply valves.
• Check the water temperature setting.
• Clean the water inlet filter for debris.
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Troubleshooting