Weil-mclain ULTRA 230 Bedienungsanleitung PDF herunterladen (Seite 32)

Part number 550-100-029/0810

GAS-FIRED WATER BOILER SERIES 1 & 2 —

Control supplement & Service guide

HARD LOCKOUT condition [Display ﬂashes ﬁrst digit, “E” and last two digits (code)]

30 Temperature rise across boiler over

58 °F, and occurred 20 times.

Flow problem through boiler — Temperature rise through boiler should be less than

35 °F.

Make sure system does not have trapped air preventing proper ﬂow.

Inspect and verify system piping and components.

Verify piping agrees with boiler manual recommendations.

Verify proper circulator(s) operation.

Possible loose connector on boiler supply/return sensor(s). Tighten connector.

Possible bad supply/return sensor.

31 Outlet water temperature sensor

short circuit.

Inspect outlet water temperature sensor and wiring. Replace sensor if wiring correct

and in good condition. Replace low voltage wiring harness if problem persists. Replace

control module if harness replacement doesn’t resolve.

32 Return water temperature sensor

short circuit.

Inspect return water temperature sensor and wiring. Replace sensor if wiring correct

and in good condition. Replace low voltage wiring harness if problem persists. Replace

control module if harness replacement doesn’t resolve.

36 Outlet water temperature sensor

open circuit.

Inspect outlet water temperature sensor and wiring.

Replace sensor if wiring correct and in good condition. s

Replace low voltage wiring harness if problem persists. s

Replace control module if harness replacement doesn’t resolve.s

37 Return water temperature sensor

open circuit.

Inspect return water temperature sensor and wiring.

Replace sensor if wiring correct and in good condition. s

Replace low voltage wiring harness if problem persists. s

Replace control module if harness replacement doesn’t resolve.s

44 Internal control failure

Reset control and retry. If problem persists, replace control module.

52 Flue temperature exceeded 225 °F.

Verify ﬂue temperature with thermometer.

If actual temperature does not correlate with Information mode #5, replace ﬂue s

sensor

Heat exchanger may need to be cleaned — perform the boiler complete maintenance

procedures beginning on page 33 of this guide.

Burner problem — verify gas pressure, burner ﬁring rate, combustion. Correct prob-

lems.

If combustion is still unacceptable, follow the procedures beginning on page 38 of this

guide.

60 Internal control failure

Reset control and retry. If problem persists, replace control module.

61 Internal control failure

Reset control and retry. If problem persists, replace control module.

65 Blower signal too low (not enough

driving force)

Inspect wiring and connections.

If wiring is correct, replace blower assembly. s

If blower assembly replacement is unsuccessful, replace control module.s

&IGURE Troubleshooting procedures — when display shows hard lockout code (continued)

Troubleshooting (continued)

Instructions in this supplement are based

on factory default parameter settings.

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 59 60

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