How to Say ‘Is the power on?’ in Japanese
電源は入ってる？
dengen wa haitsu teru
[den-gen wah hai- (as in hairu, with a small pause before っ) teh-roo]
💬 Usage Tip: [電源は入ってる？] is a very common troubleshooting question. You can answer [はい、入っています] if you want polite.
🇯🇵 In Japan: Repair calls often start with simple checks like this to rule out easy fixes before dispatching a plumber.
Phrase Breakdown
電源
dengen
[den-gen]
power supply; power
電源 is the “power.” This question is a standard first step before calling a plumber.
給湯器の電源は入ってる？
Is the water heater’s power on?
は
wa
[wah]
(topic marker) as for; regarding
は sets 電源 as the topic: “As for the power, is it on?” This is natural spoken troubleshooting.
電源は入ってる？ブレーカーは落ちてない？
Is the power on? Is the breaker not tripped?
入ってる？
haitsu teru
is it on? / is it turned on?
Casual contraction of 入っている？. With 電源, it means “Is the power on?” (casual question).
エアコン、入ってる？
Is the air conditioner on?
Words in this phrase
入っ
haitsu
[hai- (as in hairu, with a small pause before っ)]
entered; on; turned on (as in 入ってる)
入っ here is part of 入ってる meaning “is on.” Often used for switches, power, membership, etc.
電源は入ってる？ランプは点いてる？
Is the power on? Is the light on?
てる
teru
[teh-roo]
is/are doing (casual contraction of ている)
てる = ている (casual). 入ってる？ is a casual question; to be more polite: 入っていますか。
電源は入ってる？それでも直らない？
Is the power on? And it still doesn’t get fixed?
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