Inspect Ignition And Flame Sense Electrodes; Check Ignition Ground Wiring; Check All Water Heater Wiring; Check Control Settings - Lochinvar ARMOR 151 - 801 Service Manual

1. Remove the ignition and flame sense electrodes from
the water heater heat exchanger access cover.
2. Remove any deposits
ignition/flame sense electrode using sandpaper. If the
electrodes cannot be cleaned satisfactorily, replace with
new ones.
3. Replace ignition/flame sense electrode, making sure
gasket is in good condition and correctly positioned.
1. Inspect water heater ground wire from the heat
exchanger access cover to ground terminal strip.
2. Verify all wiring is in good condition and securely
attached.
3. Check ground continuity of wiring using continuity
meter.
4. Replace ground wires if ground continuity is not
satisfactory.
1. Inspect all water heater wiring, making sure wires are in
good condition and securely attached.
1. Set the SMART SYSTEM control module display to
Parameter Mode and check all settings. See Section 1 of
this manual. Adjust settings if necessary. See Section 1
of this manual for adjustment procedures.
2. Check settings of external limit controls (if any) and
adjust if necessary.
1. Start water heater and perform checks and tests
specified in Section 10 - Start-up of the Armor Water
Heater Installation and Operation Manual.
2. Verify cold fill pressure is correct and that operating
pressure does not go too high.
22
accumulated on the
1. Inspect flame through observation window.
2. If the flame is unsatisfactory at either high fire or low fire,
turn off water heater and allow water heater to cool down.
Remove the burner and clean it thoroughly using a vacuum
cleaner or compressed air. Do not use compressed air to
clean burner if performed inside a building.
3. Remove the burner, reference FIG. 2-2 below.
4. When replacing the burner, ensure gasket is in good
condition and positioned correctly (FIG. 2-2).
Figure 2-2
Service Manual