Building and Installation:
STEP 1: Bosch Customer # (if known)
Owner's phone number?
Model and serial number?
Where did you purchase this water heater?
Name of installer and phone number?
Date of installation?
Where in the building is this water heater installed?
Water supply and water pressure?
What is the water supply material to and from the heater?
When facing water heater, which side of the water heater
does the cold water pipe connect to?
Circuit breaker size and type
What is the gauge of the wiring supplied to the unit?
STEP 2: Temperature Control Knob Setting:
Fixture(s) used for troubleshooting this water heater?
Flow rate of ﬁ xture(s) used for troubleshooting?
Plumbing crossover test results - crossover present?
Data subject to change without notice | Printed in the USA | BTC 721002308 A | 09.2013
Troubleshooting Guide | AE12, RP12T, US12
Date of Installation:____/____/____
If plastic, does plastic piping connect directly to unit?
Bosch Thermotechnology Corp.