Nissan Almera G15 fan fuse: location, check and replacement

Owners Nissan Almera G15 (2012–2019) often encounter the problem of a non-working radiator cooling fan. One of the most common reasons is a burnt out fuse, which protects the electrical circuit of the cooling system. Unlike more serious failures (for example, a malfunction of a temperature sensor or fan motor), replacing a fuse takes only 5–10 minutes and does not require special skills.

However, even such a simple procedure is fraught with pitfalls. For example, in Almera G15 The fan fuse can be located in one of two blocks, depending on the year of manufacture and configuration. In addition, not all owners know that A blown fuse often indicates a deeper problem: a short circuit in the wiring or worn fan bearings. In this article we will look at how to correctly diagnose a fault, where to look for a fuse and how to avoid repeated breakdowns.

Where is the fan fuse located on Nissan Almera G15

B Nissan Almera G15 The cooling fan fuse can be located in two places:

• 🔧 Main fuse box in the passenger compartment - under the instrument panel on the driver's side. This is where most of the fuses are located, including the one for the fan.
• ⚡ Additional relay and fuse box under the hood - next to the battery. In some configurations (for example, with air conditioning), the fuse is duplicated or moved here.

To accurately determine the location, pay attention to fuse number:

• 📌 In the cabin unit - this is a fuse F30 (30A) or F32 (40A) (depending on the year of manufacture).
• 📌 In the engine compartment - F1 (50A) (less common, usually in cars with climate control).

Important: on some modifications Almera G15 (for example, with an engine HR16DE) The fan fuse is combined with the air conditioner circuit. If both the fan and the air conditioner do not work at the same time, check F35 (10A) in the salon block.

How to check a fan fuse: step-by-step instructions

Before replacing the fuse, it must be checked. To do this you will need a multimeter or a simple test light. Follow the algorithm:

1. Turn off the ignition and remove the cover of the fuse box (in the cabin - pry up the latches, under the hood - unscrew 2 bolts).
2. Find the right fuse by number (see section above) and remove it with special pliers (usually attached to the block cover).
3. Visually inspect: if the wire inside is burned out, the fuse must be replaced. However, even if it is visually intact, check it with a tester.

To check with a multimeter:

1. Switch the device to mode calls (diode icon).
2. Touch the probes to the fuse contacts. If you hear a beep, the fuse is good. If not, replacement is required.

⚠️ Attention: Never test a fuse for a spark by connecting it directly to the battery. This may cause a short circuit and damage the on-board electronics.

Why the fan fuse blows: main reasons

If the fan fuse Nissan Almera G15 burns out again after replacement, this is a signal of a more serious problem. Let's look at typical reasons:

• 🔥 Short circuit in wiring. Most often it occurs due to frayed insulation of wires near the radiator or fan. Check the harnesses for exposed areas.
• 🌀 Fan bearing wear. When the motor jams, the current in the circuit increases sharply, which leads to the fuse blowing. A sign is a humming or grinding sound when the fan is running.
• 💧 Moisture getting into connectors. Moisture oxidizes the contacts, increasing resistance and heating. This is especially true after washing the engine or in rainy weather.
• ⚡ Fan relay fault. The relay may become stuck, causing the fan to constantly operate at maximum power. This causes the circuit to be overloaded.

To diagnose the cause, follow these steps:

1. After replacing the fuse measure the current in the fan circuit (with a multimeter in 10A). Normal current is 5–15 A. If higher, the problem is in the motor or wiring.
2. Check fan winding resistance (disconnect the connector and measure between the contacts). The norm is 0.5–2 Ohm. If the resistance is close to 0, there is a short circuit.

How to test the fan relay?

To test a relay, remove it from the block (usually a relay R12 in the engine compartment). Connect 12V voltage to pins 85 and 86 (can be from a battery through a light bulb). If the relay clicks and closes contacts 30 and 87, it is working properly. If not, replace the relay (cost ~300–500 rubles).

Which fuse should I choose to replace?

For Nissan Almera G15 The following fuses are suitable:

Fuse number	Rating (A)	Type	Note
F30	30	Knife (standard)	The most common option for basic configurations
F32	40	Knife (reinforced)	For cars with air conditioning or climate control
F1	50	Knife (maxi)	Found in the engine compartment (rarely)

It is important to use a fuse exactly the same denomination, as the original. Installing a fuse with a lower rating (for example, 20A instead of 30A) will lead to its instantaneous blowout. fuse with large denomination (for example, 50A instead of 30A) will not protect the circuit from overload, which could cause a fire.

Recommended fuse brands:

• 🔹 Bosch — reliable, with an accurate rating, resistant to corrosion.
• 🔹 Hella - German quality, suitable for extreme temperatures.
• 🔹 Nissan OEM - original fuses (article no. 28501-JK00A for 30A).

Step by step fan fuse replacement

The fuse replacement procedure takes no more than 5 minutes. Follow the instructions:

1. Preparation:
   • Turn off the ignition and remove the terminal "-" from the battery (for safety).
   • Locate the fuse box (see section above) and remove the cover.
2. Removing the old fuse:
   • Use plastic tongs (usually attached to the lid of the unit).
   • If you don't have pliers, carefully pry the fuse out with a screwdriver without touching the metal parts.
3. Installing a new fuse:
   • Insert a fuse of the same rating until it clicks.
   • Make sure it sits tightly - an underpressed fuse can get hot.
4. Check:
   • Connect the battery and start the engine.
   • Wait until the coolant temperature reaches 90–95°C (you can speed it up by turning the heater on to maximum).
   • Make sure the fan turns on (you should hear a noise).

⚠️ Attention: If, after replacing the fuse, the fan does not turn on when the engine warms up to 100°C, do not continue driving. This can lead to engine overheating and deformation of the cylinder head. Check the temperature sensor or fan relay.

What to do if replacing the fuse does not help

If the fan still does not work after replacing the fuse, the problem lies in another element of the system. Let's consider possible malfunctions and methods for diagnosing them:

• 🔍 Coolant temperature sensor. If it malfunctions, the ECU does not receive a signal about overheating and does not turn on the fan. Check the sensor resistance (at 20°C - ~2.5 kOhm, at 90°C - ~0.3 kOhm).
• 🔌 Fan relay. How to check - see spoiler above. Often the relay “sticks” due to oxidation of the contacts.
• 🌀 Fan motor. Test it by supplying 12V directly from the battery. If it does not spin, replacement is required (part number for Almera G15 — 27300-JK00A).
• 📶 Broken wiring or oxidation of connectors. Inspect the wires from the ECU to the fan (especially where there are bends). Clean the connector contacts with alcohol.

If you are not confident in your abilities, contact an electrician. The average cost of diagnosing a cooling system at a service center is 1000–1500 rubles. Replacing the fan motor will cost 3,000–5,000 rubles. (depending on the region).

Prevention: how to avoid repeated fan problems

To make the fan fuse Nissan Almera G15 does not burn out again, follow the recommendations:

• 🛠️ Clean the radiator and fan regularly from dirt and leaves. Clogging impairs heat transfer and causes the fan to work at its limit.
• 💧 Avoid high-pressure engine washing. Moisture that gets into the connectors causes corrosion and short circuits.
• ⚡ Check the voltage in the on-board network. Voltage surges (eg due to a faulty alternator) will shorten the life of the fuses.
• 🔧 Lubricate the fan bearings 1 time every 2 years. Use heat resistant lubricant (eg LIQUI MOLY Thermoflex).

It is also useful to check once every six months fuse status visually. Oxidation of contacts or darkening of the case is a sign of overheating. In this case, it is better to replace the fuse in advance, even if it has not yet blown.

FAQ: Frequently asked questions about the Nissan Almera G15 fan fuse

Is it possible to drive without a fan fuse if it keeps blowing?

No! Installing a "bug" (a wire instead of a fuse) or driving without one can lead to fire. If the fuse blows repeatedly, the cause must be found and eliminated (short circuit, faulty fan motor, etc.).

Which fuse is responsible for the fan on Almera G15 2015 with air conditioning?

In most cases this F32 (40A) in the salon block. However, if the fan does not turn on, also check F1 (50A) in the engine compartment - it can duplicate circuit protection.

Why does the fan run constantly, even on a cold engine?

This is a sign of a problem temperature sensor or "sticking" fan relay. Also check the circuit for a short circuit - constant operation of the fan can lead to battery discharge.

How much does it cost to replace a fan fuse at a service center?

Replacing the fuse at the service itself costs 200–500 rubles. (unless diagnostics are required). However, if the problem is in the wiring or fan motor, the price can rise to 2000–4000 rubles.

Is it possible to use a fuse of a different rating if I don’t have the right one on hand?

Absolutely not. A fuse with a lower rating will blow out immediately, but a fuse with a larger rating will not protect the circuit from overload. As a last resort, you can temporarily install a fuse 1-2 A smaller (for example, 25A instead of 30A), but only to get to the store.