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INSTALLATION, OPERATING AND
SERVICE INSTRUCTIONS FOR
For service or repairs to boiler, call your heating contractor. When seeking information on boiler,
provide Boiler Model Number and Serial Number as shown on Rating Label.
Boiler Model Number
X-20
Heating Contractor
Address
106636-01 - 10/15
X-2 ™ Series
Cast Iron Gas - Fired Boiler
Boiler Serial Number
9700609
Installation Date
Phone Number
Price - $5.00
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Summary of Contents for U.S. Boiler Company X-2 Series
- Page 1 INSTALLATION, OPERATING AND SERVICE INSTRUCTIONS FOR X-2 ™ Series Cast Iron Gas - Fired Boiler 9700609 For service or repairs to boiler, call your heating contractor. When seeking information on boiler, provide Boiler Model Number and Serial Number as shown on Rating Label. Boiler Model Number Boiler Serial Number Installation Date...
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Page 2: Before Troubleshooting
When using these tables the following should be kept in mind: 4. All controls on the X-2 Series are tested at least once in the manufacturing process and a defective 1. This information is only meant to be used by... - Page 3 X. Troubleshooting (continued) USE CONTROL DISPLAY ERR (ERROR) NUMBER TO DIRECT TROUBLESHOOTING EFFORTS If the control detects an error it will flash “Err” (error) followed by a number. Use this number to identify the boiler problem and corrective action in the table below. If there is no Err display proceed to Paragraph C: Display Status Recommended Corrective Action...
- Page 4 X. Troubleshooting (continued) USE STA (STATUS) NUMBER TO GUIDE TROUBLESHOOTING The control will flash “STA” followed by a number. Use this number to identify the boiler problem in the table below: 1. Boiler and Circulator Off Display / Status Recommended Corrective Action The boiler has not detected a call for heat (tt = off and dh = off).
- Page 5 X. Troubleshooting (continued) 5. Circulator is On But Damper is Not Open Display / Status Recommended Corrective Action The control is waiting for the damper to open. Damper end switch has failed to close (end switch contact is stuck open). Combustion can never take place unless the damper blade is in the fully open position. Check the following: - During status “STA18"...
- Page 6 X. Troubleshooting (continued) 6. Circulator is On, Damper is Open But Boiler Fails to Start (continued) Display / Status Recommended Corrective Action 1. No Spark a. Can you hear sparking while STA 6 is displayed? - If there is no spark noise replace the control. b.