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Home > Service & Support > Troubleshooting > What should I note if the air circuit breaker (ACB) is insufficient when installing an instant electric water heater?
Question: What should I note if the air circuit breaker (ACB) is insufficient when installing an instant electric water heater?
Answer:

If the main incoming ACB doesn’t meet requirements (it relates to the total electrical load), you must contact a licensed electrician for handling. If only the branch ACB is insufficient, you can either install surface wiring or replace the branch ACB directly.

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