ULTRA S4 GAS BOILER UG-299 User Manual

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Part number 550-100-400/0119

115

฀฀

Tro ubleshooting

Reinstall boiler jacket front door

Reinstall boiler jacket front door after

servicing. The boiler front door must be

securely fastened to the boiler to prevent

boiler from drawing air from inside the

boiler room. This is particularly impor-

tant if the boiler is located in the same

room as other appliances. Failure to keep

the door securely fastened could result in

severe personal injury or death.

Before troubleshooting:

1. See Figure 122 for tools and kits recommended for

troubleshooting Ultra boilers.

2. Check for 120 VAC (minimum 102 VAC to maxi-

mum 132 VAC) to boiler.

3. Check the U-Control’s last three lockout histories.

a. See page 99, “ADVANCED SETUP – OVER-

VIEW.”

b. Scroll down to DIAGNOSTICS and press the

enter key.

c. Scroll down to ERRORS and press the enter key.

d. Record the ﬁ rst four data records and then

highlight the history record you want to view.

e. Follow information at the bottom of the screen

to navigate through your lockout histories.

Before servicing and making connections

. . .

฀฀฀฀฀฀฀

฀฀฀฀฀

฀฀฀

฀฀ — The boiler ON/

OFF switch does not turn off all power to the boiler.

฀฀฀฀฀฀฀฀

. Internal wiring is still powered when the

switch is off.

Label all wires prior to disconnection when servicing

controls. Wiring errors can cause improper and dan-

gerous operation. Always disconnect power to boiler

before servicing. Failure to comply could result in

severe personal injury, death or substantial property

damage.

Never jumper (bypass) any device except for momen-

tary testing. Severe personal injury, death or substan-

tial property damage can result.

Before calling, always complete the “฀฀฀

฀

” ( page 124 ). Record the boiler size

and CP number (located on the lower center support

frame in the center of the boiler).

Figure 122 Tools and its for trouleshootin

฀฀฀

 hillips Scredrier emoe  scres to remoe the top front coer

U-Control Scredrier or   at lade scredrier Used for irin on terminal locs for the U-Control comes ith oiler

 Allen rench e e To add ori ce to chane from natural to propane

mm Nut drier Ultra  To chane the urner  hillips Scredrier for the  and 

mm Nut drier To remoer the front coer plate on the urner

mm Allen rench lon handled preferred To remoe the loer asseml from the heat echaner

ultimeter To tae measurement readins on sensors and electrical components

anometer Incline or diital To measure the as pressure comin to the oiler.

Comustion analer iital preferred or comustion testin.

Contact thermometer or checin surface temperatures of heat echaner and pipes

N -- aintenance it  and  This it should e on hand hen performin annual maintenance in the

eent replacement is reuired.

N -- aintenance it



This it should e on hand hen performin annual maintenance in the

eent replacement is reuired.

Series 4

gas-fired water boiler — Boiler Manual

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Weil-McLain ULTRA S4 GAS BOILER UG-299 Ultra S4 Gas Boiler Ug80 Ultra S4 Residential Gas Water Boiler

User Manual - Page 115